RT9505 Просмотр технического описания (PDF) - Richtek Technology

Номер в каталоге

Компоненты Описание

производитель

RT9505

Linear Single Cell Li-Ion Battery Charger IC

Richtek Technology 

RT9505

Typical Application Circuit

AC

Adapter

RT9505

1 ACIN

10

BATT

1uF

Battery Pack

To System

To System

3 CHG_S

4 PGOOD

5, Exposed Pad (11)

GND

9

TS

8

EN

ISETA 6

Chip Shutdown

Chip Enable

RSET

0.1uF to 10uF

Pre-Charge Phase

Fast Charge

Phase

Programmed

Charge Current

Constant Voltage

Phase &

Re-Charge Phase

Standby Phase

4.1V Recharge

Threshold

Battery

Voltage

Charging

Current

1/10 Programmed

Charge Current

2.8V Precharge

Threshold

Charge

Complete

Functional Pin Description

Pin No.

Pin Name

Pin Function

1

ACIN

Wall Adaptor Charge Input Supply.

2, 7

NC

No Internal Connection.

3

CHG _S

Charge Status Indicator Output (open drain).

4

PGO OD

Power Good Indicator Output (open drain).

5

GND

G round.

6

ISETA

Wall Adaptor Supply Charge Current Set Point.

8

EN

9

TS

Charge Enable Input (active low).

Temperature Sense Input.

10

BATT

Battery Charge Current Output.

11 (Exposed Pad) GND

Exposed pad should be soldered to PCB board and connected to GND.

www.richtek.com

2

DS9505-02 April 2011

Share Link: